The United States Attorney representing Nevada warned hosts of the annual Cannabis Cup earlier this month that attendees must comply with federal law banning the possession, distribution, and use of marijuana, the Reno Gazette-Journal reports.

“I am informed that the tribal council is moving forward with the planned marijuana event referred to as the 2017 High Times Cannabis Cup because it is under the impression that the so-called ‘Cole Memorandum’ and subsequent memoranda from the Department of Justice permit marijuana use, possession and distribution on tribal lands when the state law also permits it,” Nevada U.S. Attorney Daniel Bogden reportedly wrote in a letter to the Moapa Paiute Tribe, which is hosting High Time’s annual Cannabis Cup outside Las Vegas. “Unfortunately, this is an incorrect interpretation of the Department’s position on this issue.”

Incorrect? Or outdated?